Blind-rod clamp.



No. 768,135. PATENTED AUG. 23, 1904,

' J. F. MILLER.

BLIND ROD CLAMP.

ArrLwA noN FILED JAN. 9, 1904.

N0 MODEL.

" w W MW x men for UNITED STATES Patented August 23, 1904.

PATENT OEEIcE.

BLIND-ROD CLAMP.

SPECIFICATION forming part of Letters Patent No.'7"68,135, dated August 23, 1904. Application filed January 9, 1904. Serial No. 188,360. (No modelJ ful Blind-Rod Clamp, of which the following Fig. 2 is a face view of the device.

is a specification.

Th1s invention is an improved construction 'of blind-rod clamp, the object being to provide a cheap and simple device which can be attached to any of the blinds now in use and by means of which rods operating the slats can be locked in any desired position. as ordinarily constructed have no means whatever for locking the rod, and as a rule the said rod can only be adjusted in two positions, one for the purpose of opening the slats and the other for the purpose of closing them. Rodfasteners have been devised; but all of them are somewhat complicated and expensive to manufacture and are not easy to "adjust.

The principal aim of my invention isto provide a device which shall be exceedingly cheap and simple in construction and one which can be quickly and easily applied and operated with the greatest facility.

With these objects in view the invention consists in the novel features of construction hereinafter fully described, and pointed out in the claims.

In the drawings forming part of this specification, Figure 1 is a perspective view showing the practical application of my invention. Fig. 3 is a sectional view on the line 3 3 of Fig. 2. Fig. 4 is a sectional view on the line 4 4: ofFig. 2. Fig. 5 is a horizontal sectional view on the line 5 5 of Fig. 2.

In carrying, out my invention I employ a housing A, having a slot A in the front and extending from end to end of the housing.

Blinds preferably extending outwardly a considerable distance beyond the housing. This plate, however, is not necessary except for the purpose of closing the end of the housing. Sliding in the housing is a bar D, which has a plateE connected to the endadjacent the plate B, said plate E being substantially of the same size and shape as the plate B; but in addition it has a lug E, which slides in the housing, and bearing against this lug at one end and the plate C at the opposite end is a spiral spring F, the purpose of which is to project the plate E against or toward the plate B. The bar D is provided with a forwardly-projecting portion D at the end adjacent the closed end of the housing, which forwardly-projecting portion is for the purpose of sliding the bar back in the housing for the purpose of moving the plate E away from the plate B.

G indicates the rod, which is connected to the slats H in the usual manner. The lower end of this rod normally rests between the plates B and E, and the pressure of the spring F will hold the said rod against movement,

thereby holding the slats fixed in any desired adjustment. Should it be desired to change the position of the rod, and consequently the adjustment of the slats, the thumb or finger is pressed against the projection D, compressing the spring and withdrawing the plate E away from the plate B, and the rod G can then be moved up or down, as desired, and the moment the bar is released the spring will operate to clamp the plate E against the rod, and thereby hold the same fixe It will thus be seen thatI provide an exceedingly cheap and simple construction of rodclamp which entirely avoids the use of setscrews and by means of which the blind-slats can be quickly and easily adjusted and fastened.

Having thus fully describedmy invention, what I claim as new, and desire to secure by Letters Patent, is I 1. A device of the kind described comprising a housing slotted at the front, closed at one end, and provided witha'plate at the opposite end, and a bar sliding in said housing and carrying a plate at one end and the projection at the opposite "end; and means for projecting in contact with each other, as set forth.

2. A device of the kind described comprising a housing having a slot at the front, closed at one end and provided With a plate at the opposite end, a bar sliding in the housing and having a projection at the end adjacent the closed end of the housing and a plate at the opposite end of the bar, the plate carried by the bar and the plate arranged at the end of the housing being of substantially the same size and shape and arranged in parallel relation with each other, the plate carried by the bar having a lug moving in the housing, and a coil-spring arranged within the housing between the said lng and the closed end of the housing, substantially as described.

JAMES FRANKLIN MILLER.

\Vitnesses:

DUGALD (J. h le'lN'rrnn, CHAs. Cox. 

